Magtek MICRSafe, Техническое справочное руководство

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Section 4. Legacy Commands
13
Comm Mode 7, also known as Packet Mode, calculates an LRC (Longitudinal
Redundancy Check), and appends it to the data message. Also, if a <NAK> (hex 15)
character is received in this mode, the MICRSafe will resend the last message.
Send Data After Error
The Send Data After Error option specifies whether the MICRSafe will return data to the
Host after a read error. If YES is selected and the MICRSafe detects a read error, the
MICRSafe will still send the data back to the Host. If NO is selected and the MICRSafe
finds an error, it will discard the data and nothing will be sent. The error conditions are
listed in Table 4-4.
Send Status After Data
The Send Status After Data option causes the MICRSafe to append a two-digit
error/status code to the end of the MICR data. For most formats (See Appendix A), the
error/status code will always be preceded by a forward slash (/). The error/status codes
are listed in Table 4-4.
For example, if a Canadian check (code 08) is read and has no errors, and the MICR data
is “1234567890”, then the message from the MICRSafe will look like this:
MICR Data: 1234567890/08
The status code is always at the end of the data, not the end of the message. For example,
using the above conditions, with the message format set to send <STX> and <ETX>, the
message from the MICRSafe will look like this:
MICR Data: <STX>1234567890/08<ETX>
Table 4-4. Error and Status Codes
PRIORITY CODE TYPE DESCRIPTION
9 01 Error No MICR data: no transit and no account found
8 09 Status Mexican check
7 08 Status Canadian check
6 05 Error Transit error: No transit, bad character, bad
length, bad check digit
5 07 Error Account error: No account, bad character
4 04 Error Check # error: Bad character in check number
4 04 Status No check number
3 03 Status Low MICR signal, good read
2 10 Status Business check
1 11 Status Amount field present
0 00 Status Good read
Notes:
•
The LED indicator will turn red on all error conditions.
•
The absence of a check number is not considered an error.